Pipe clamp



W. WRIGHT PIPE CLAMP Oct. 29, 1940.

2 Sheets-Sheet l Filed Aug. 10, 193B w. WRIGHT Oct. 29, 1940.

PIPE CLAMP Filed Aug; 1o, 19:58 2 sheets-sheet 2 fil/@nm Wzl/fam WhyMVP/ffm Patented Oct. 29, 1940 UNITED STAT PIPE ci.

Application August 10, 1938, Serial No. 224,198

6 Claims.

My invention relates particularly to pipe clamps such as are used tosecure pipes on railway rolling stock, although not limited to this usealone.

The general object of my invention resides in the provision of a noveland practical pipe clamp which securely clamps a pipe, all with a viewtoward ease of assembly and economy in manufacture.

With this object in view my invention consists in certain features ofnovelty in the construction, lcombination and arrangement of parts bywhich the said object and certain other objects, hereinafter appearing,are effected, all as fully described with reference to the accompanyingdrawings and more particularly pointed out in the appended claims.

In the said drawings- Figure 1 is an end elevation of a pipe clampembodying my invention and showing a pipe in section clamped therein;

Figure 2 is a bottom plan view of the same;

Figure 3 is a top plan view of the'same with parts broken away;

Figure 4 is an end elevation of a pipe clamp embodying my invention in amodiiied form and showing a pipe in section clamped therein;

Figure 5 is a side elevation of one of the pipe clamping members Vasshown in Figure 4; and

Figure 6 is a partial bottom plan view of the structure illustrated inFigure 4 with parts broken away and shown in section.

Referring to Figures 1, 2 and 3 of the drawings, l designates a bracketportion of a pipe clamp member d which is adapted t0 be secured to asupport 2, as designated at 3. The main portion of the member d issegment shaped and is formed integrally with and extends from thebracket portion I and provides a concave pipe engaging surface 5 and aconvex cam surface G eccentric to the axis of this pipe engagingsurface.

A second pipe clamping member 1 is of generally crescent shape andprovides a concave pipe engaging surface 8 to the end that a pipe may beengaged between the pipe engaging surfaces 5 and 8 of the two pipeclamping members, the pipe `clamping member 'I being angularly movablewith respect to the mounted pipe clamping member about the axis of thepipe 9 between the pipe 50 clamping members.

The pipe clamping member l is provided with a surface H facing andspaced from the concave pipe engaging surface 8, and this surface H isengageable on the cam surface 6 to effect relative 55 pipe clampingmovement of the pipe clamping (Cl. 24x-243) members with relativeangular movement thereof about the axis of the pipe 9 therebetween.

One end of the pipe clamping member l is provided with an aperturedradial lug l2 and the bracket portion I of the mounted pipe clamping `5member is provided with an'apertured lug I3. A screw bolt le is engagedthrough the apertures of the lugs l2 and i3 to effect relative angularmovement of the pipe clamping -members about the axis of the pipe, whichmovement effects clamping 10 of the pipe by reason of the cam surface textending eccentrically of the pipe axis and the surface ll engagingthis cam surface. The screw bolt til maintains the pipe clamping membersin pipe clamping relation. 15l

Concerning Figures 4, 5 and 6, the modication illustrated thereininvolves the same principle of operation as does the form illustrated inFigures 1, 2 and but differs therefrom structurally. n 20 Referring toFigures 4, 5 and 6, l 5 designates a bracket portion of a pipe clampmember which is adapted to be secured to a support I6, as designated atil. A segment shaped portion I8 is formed integrally with and extendsfrom the 25 bracket portion l5 and provides a concave pipe engagingsurface I9 and a convex cam surface 2i eccentric to the axis of thispipe engaging surface. Y

A second pipevclamping member 22 is of gen- 30 erally annular shape andprovides a concave-pipe engaging surface 23 to the end that a pipe 2limay be engaged between the pipe engaging surfaces i 9 and 23.

The pipe clamping member 22 is provided with 35 a surface 25 engageablewith the cam surface 2l for clamping the pipe 2li with relative angularmovement of the pipe clamping members as before described. I

The pipe clamping member 22 is provided with 40 an apertured radial lug255 and the bracket portion l5 is provided with an apertured lugzl, anda screw bolt 2t is engaged through the apertures of the lugs 2t and 2lto effect relative angular movement of the pipe clamping members asbefore described.

Having thus described my invention, 1 do not wish to be limited to theprecise details described, as changes may readily be made withoutdeparting from the spirit of my invention, but having thus described myinvention, I claim as new and desire to secureby Letters Patent thefollowing:

1. In a pipe clamp the combination of pipe clamping members relativelymovable angularly about the axis of a pipe therebetween, and a camengagement between said clamping members comprising a cam element on oneof said clamping members and extending eccentrically about a pipeengaged between said clamping members and a cam engaging element on theother clamping member and engageable with said cam element, said cam andcam engaging elements being so disposed on said clamping members thatengagement of said cam and cam engaging elements opposes the clampingmember and pipe engagei ment whereby to effect pipe clamping movement ofsaid clamping members "lith relative angular movement thereof.

2. In a pipe clamp the combination of pipe clamping members providedwith concave pipe engaging surfaces and relatively movable angularlyabout the axis of a pipe therebetween, one of said clamping membershaving a segment shape providing the concave pipe engaging surfacethereof and a convex cam element eccentric to the axis of the pipeengaging surface, the other pipe clamping member being provided with acam engaging element facing and spaced from the concave pipe engagingelement thereof and engageable on said 'cam surface to effect pipeclamping movement of said clamping members with relative angularmovement thereof.

3. In a pipe clamp the combination of pipe .clamping members providedwith concave pipe engaging surfaces and relatively movable angularlyabout the axis of a pipe therebetween, one of said clamping memberscomprising a bracket portion adapted to be secured to a support and asegment shaped portion extending therefrom and providing the concavepipe engaging element thereof Land a convex cam surface eccentric to theaxis of this pipe engaging surface, the other pipe clamping member beingprovided with a cam engaging element facing and spaced from the concavepipe engaging surface thereof and engageable on said Cam element toeffect pipe clamping movement of said clamping members `With relativeangular movement thereof.

4. In a pipe clamp the combination of pipe clamping members relativelymovable angularly about the axis of a pipe therebetween, a camengagement between said clamping members comprising a cam element on oneof said clamping members and extending eccentrically about a pipeengaged betvl een said clamping members and a cam engaging element onthe other clamping member and engageable with said cam element, said camand cam engaging elements being so disposed on said clamping membersthat engagement of said cam and cam engaging elements opposes theclamping member and pipe engagement whereby to effect pipe clampingmovement of said clamping members with relative angular movementthereof, and adjustable means operative between said clamping members toeffect relative angular positioning thereof.

5. In a pipe clamp the combination of pipe clamping members providedwith concave pipe engaging surfaces and relatively movable angularlyabout the axis of a pipe therebetween, one of said clamping membershaving a segment shape providing the concave pipe engaging surfacethereof and a convex cam element eccentric to the axis of this pipeengaging surface, the other pipe clamping member being provided with acam engaging element facing and spaced from the concave pipe engagingelement thereof and engageable on said cam surface to effect pipeclamping movement of said clamping members With relative 'angularmovement thereof, and screw means operative between said clampingmembers to effect relative angular movement thereof.

6. In a pipe clamp the combination of pipe clamping members providedwith concave pipe engaging surfaces and relatively movable `angularlyabout the axis of a pipe therebetween, one of said clamping memberscomprising a bracket portion adapted to be secured to a support and asegment shaped portion extending therefrom and providing the concavepipe engaging element thereof and a convex cam surface eccentric to theaxis of this pipe engaging surface, the other pipe clamping member beingprovided with a cam engaging element facing and spaced from the concavepipe engaging surface thereof and engageable on said cam element toeffect pipe clamping movement of said clamping members with relativeangular movement thereof, an ap ertured lug on said bracket portion, asecond apertured lug on said other clamping member, and a screw boltengaged through the apertures of ysaid lugs to effect relative angularmovement of said clampingmembers.

WTLLIAM WRIGHT.

